Quote:
Originally Posted by CoolMikey
1. Imagine you are a person running on a treadmill at 5mph, and treadmill is set to 5mph. Clearly you would be stationary, that's the whole point of a treadmill that you exert energy, while not moving. No?
2. Now, simply replace yourself running, with an airplane. What would cause the airplane to "take off" if it's stationary, like we established in previous step?
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1.The whole point of a treadmill is losing calories... not exerting energy...
2.An airplane is called an airplane not a groundplane or a wheelplane... An airplane coudn't care less about it's "stationary" speed compared to the ground...